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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
APNIC-measured end-user deployment.
Clean prefixes (valid RPKI + IRR, no mismatch).
Cumulative IPv4, IPv6, and ASN allocations to United States over time.
The largest autonomous systems registered to United States by IPv4 footprint.
| AS | Holder | IPv4 | Prefixes |
|---|---|---|---|
| AS749US | DNIC-AS-00749 - United States Department of Defense (DoD) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 23,961 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) |
United States against its land-border neighbours on IPv4, IPv6, AS numbers and per-capita density.
Share of announced address space covered by valid Route Origin Authorizations.
32,159 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| 1.8K |
| 5 |
| 12 |
| AS205940US | PlusCreativo Plus Creativo LLC | 1.8K | — | 4 |
| AS7334US | WALLSTREET - Markit On Demand, Inc. | 1.8K | — | 7 |
| AS36464US | RABO-NA-BGP01 - Rabo Support Services, Inc. | 1.8K | — | 5 |
| AS22024US | SPLUNK-WEST - Splunk, Inc. | 1.8K | 1 | 8 |
| AS395176US | ENCORE-TECHNOLOGIES - Encore Technologies | 1.8K | 768 | 10 |
| AS19142US | AAFES-NETBLK-ASN - Army & Air Force Exchange Service | 1.8K | — | 7 |
| AS201665US | KSTNETWORKS Anonymizer, LLC | 1.8K | — | 7 |
| AS6524US | OPENTEXT-NA-US-BROOKPARK-2 - GXS | 1.8K | — | 7 |
| AS395519US | AS-CTCHILDRENS - Connecticut Children's Medical Center | 1.8K | — | 4 |
| AS397743US | PAYG - PAYG, LLC | 1.8K | — | 7 |
| AS397847US | FLEX-SPF - Flextronics International USA, Inc. | 1.8K | — | 4 |
| AS394855US | STRATUS-VIDEO - Stratus Video, LLC | 1.8K | 2 | 7 |
| AS401170US | HBG-IP - HBG Inc. | 1.8K | 256 | 5 |
| AS400339US | TRINITY-CYBER-01 - Trinity Cyber | 1.8K | 82 | 14 |
| AS46155US | DEERFIELD-ACADEMY - Deerfield Academy | 1.8K | — | 7 |
| AS14521US | PACIFIC-LIFE - Pacific Life Insurance Company | 1.8K | — | 7 |
| AS46191US | 5LINX-ASN - Globalinx | 1.8K | — | 5 |
| AS40090US | RGC-WIRELESS - RGC Wireless | 1.8K | 65.5K | 5 |
| AS32927US | CLECO-CORP - Cleco Corporation | 1.8K | — | 7 |
| AS7010US | DACSIX-NORTH - DACS-IX | 1.8K | 532.7K | 14 |
| AS402072US | OZONTI-NETWORK-LLC - OZONTI NETWORK LLC | 1.8K | 258 | 10 |
| AS151980US | EAAPPL-AS-AP - Electronic Arts Inc. | 1.8K | — | 5 |
| AS14137US | AICW - America Internet & Communications | 1.8K | — | 6 |
| AS26002US | SU-NOC - Southern University | 1.8K | — | 7 |
| AS29729US | TELEFLORA-OKC - Teleflora LLC | 1.8K | — | 6 |
| AS63322US | PARLER-CLOUD - Parler Cloud | 1.8K | — | 6 |
| AS397966US | READYDEDISLLC - ReadyDedis, LLC | 1.8K | — | 7 |
| AS396016US | HYATT-CORP2 - Hyatt Corporation | 1.8K | 4 | 6 |
| AS55236US | CBC - CBC | 1.8K | — | 4 |
| AS14462US | ABB-NET - Acadiana Broadband, LLC | 1.8K | — | 4 |
| AS401944US | VORTEX WIRELESS INTERNET - Vortex Wireless Internet | 1.8K | — | 3 |
| AS205157US | CIDNOC Daniel Cid | 1.8K | 5 | 12 |
| AS15182US | ALE-NAR-CALI-RD-01 - ALE USA Inc. | 1.8K | — | 7 |
| AS393753US | AS393753 - The Brooklyn Hospital Center | 1.8K | — | 3 |
| AS32686US | SMART-CITY-RPCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 1.8K | — | 3 |
| AS53988US | DIGIDESERT - Digi Desert LLC | 1.8K | 16 | 5 |
| AS30051US | SCCGOV - Santa Clara County | 1.8K | — | 6 |
| AS53985US | DODGE-AND-COX-FUNDS - DODGE & COX | 1.8K | — | 7 |
| AS30283US | MOFO - Morrison & Foerster | 1.8K | — | 7 |
| AS22334US | FERGUSON - Ferguson Enterprises, LLC | 1.8K | — | 6 |
| AS40799US | LOOMIS - Loomis Armored US, LLC | 1.8K | — | 6 |
| AS54840US | UWM - United Wholesale Mortgage, LLC | 1.8K | — | 4 |
| AS401780US | NNTC - Nucla Naturita Telephone | 1.8K | 5 | 12 |
| AS21658US | CHAMELEON-LABS - Chameleon Labs LLC | 1.8K | — | 7 |
| AS26663US | BANTELUSACORP-01 - BANTEL-USA CORP | 1.8K | — | 7 |
| AS13950US | DLS-INTERNET-SERVICES - DLS Internet Services, Inc | 1.8K | — | 7 |